M41T93_11 STMICROELECTRONICS [STMicroelectronics], M41T93_11 Datasheet - Page 9

• Manufacturer Part Number: M41T93_11
• Description: Serial SPI bus real-time clock with battery switchover
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

M41T93
Figure 4.
1. Open drain output
2. V
RST
CRYSTAL
= V
V CC
SDO
SCL
SDI
SO
V BAT
E
Block diagram
= 2.93 V (S), 2.63 V (R), and 2.32 V (Z)
V RST /V SO (2)
XI
XO
INTERFACE
OSCILLATOR
COMPARE
WRITE
PROTECT
V CC < V RST
32KHz
SPI
Doc ID 12615 Rev 6
USER SRAM (7 Bytes)
FREQUENCY TEST
REAL TIME CLOCK
OSCILLATOR FAIL
OUTPUT DRIVER
8-BIT COUNTER
SQUARE WAVE
8 BITS OF OTP
WATCHDOG
CALENDAR
ALARM1
ALARM2
CIRCUIT
INTERNAL
POWER
TIMER
t rec
A1IE
FT
OUT
TIE
SQWE
OFIE
IRQ/FT/OUT
SQW
RST
(1)
Description
(1)
AI11821
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